Skip to main content

Full text of "The Cambridge Natural History"

See other formats


BRAIN  OF CARNIVORA

389

urface  of that  bone.     The  digits  of the  Carnivora  are mostly

ive, and are never less than four.     The mode of progression may
•e dlgifcigrade or plantigrade, and the intermediate semidigitigrade

. 192.—Brain of Dog.     A, Ventral ; B,  dorsal : C, lateral aspect.     Rot, Olfactory
lob*;   CV.ee, crura cerabri ;   J^.j>» great  longitttdiTyd tsssne;   JST^RT,  Ifff\ lateral
lobes of cerebellum ; Hyp, bypopHysis ; MeA* spinal cord ; NH^ medulla oWoug
Po» potts Varolii ;   FJ5T* cerebral temisplsewss ;   Wu, middle lobe (venmia) of
belltim ; I-XII, cerebral nearves.     (I'rom WIed«rslieiiii*s Cfomj»r«tfwe Anatomy.)
3aode of walking also occurs. The brain in all Carnivom is large
md -well convoluted. The arrangement of the convolutions is
ilmracterisfci0. There axe three or four gyri disposed round each
>tber, of which, the lowest surrounds the Sylviaja fissure* The-
jtomach in these creatures is always simple in farm, w/Gblwrat